CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE (LOSS) INCOME - USD ($) $ in Thousands		3 Months Ended
		Nov. 02, 2019	Oct. 27, 2018
Statement of Comprehensive Income [Abstract]
Net loss including noncontrolling interests		$ (383,408)	$ (19,291)
Other comprehensive (loss) income:
Recognition of pension and other postretirement benefit obligations, net of tax	[1]	572	0
Recognition of interest rate swap cash flow hedges, net of tax	[2]	(3,681)	196
Foreign currency translation adjustments		371	(672)
Total other comprehensive loss		(2,738)	(476)
Less comprehensive income attributable to noncontrolling interests		519	3
Total comprehensive loss attributable to United Natural Foods, Inc.		(386,665)	(19,770)
Other Comprehensive Income (Loss), Pension Benefit Obligations, Tax		200	0
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax		$ (1,300)	$ 300

[1] Amounts are net of tax (benefit) expense of $0.2 million and $0.0 million for the 13-week periods ended November 2, 2019 and October 27, 2018, respectively.

[2] Amounts are net of tax (benefit) expense of $(1.3) million and $0.3 million for the 13-week periods ended November 2, 2019 and October 27, 2018, respectively.